diff --git a/editor.html b/editor.html
index be7968b2..03d5e108 100644
--- a/editor.html
+++ b/editor.html
@@ -107,7 +107,7 @@
 
     <script type="text/editor" id="jstext">function foo(items) {
     for (var i=0; i<items.length; i++) {
-        alert(items[i] + "juhu");
+		alert(items[i] + "juhu");
     }
 }</script>
 
diff --git a/lib/ace/layer/text.js b/lib/ace/layer/text.js
index 7261bff0..1d303742 100644
--- a/lib/ace/layer/text.js
+++ b/lib/ace/layer/text.js
@@ -279,7 +279,7 @@ var Text = function(parentEl) {
                 .replace(/&/g, "&amp;")
                 .replace(/</g, "&lt;")
                 .replace(spaceRe, spaceReplace)
-                .replace(/\t/g, this.$tabString)
+                .replace(/\t/g, _self.$tabString)
                 .replace(/[\u3040-\u309F]|[\u30A0-\u30FF]|[\u4E00-\u9FFF\uF900-\uFAFF\u3400-\u4DBF]/g, function(c) {
                     return "<span class='ace_cjk' style='width:" + (characterWidth * 2) + "px'>" + c + "</span>"
                 });